<template>
  <view>
    <!-- 1. 头部搜索框 -->
    <ugo-search />
    <!-- 2. tabs 选项卡 -->
    <u-tabs :list="tabList" lineColor="#EB4450" :scrollable="false"></u-tabs>
    <!-- 3. 商品列表 -->
    <view class="goods-list">
      <!-- 商品列表渲染 -->
      <navigator class="goods-item" v-for="item in goodsList" :key="item.goods_id" :url="`/pages/goods-detail/index?goods_id=${item.goods_id}`">
        <image
        lazy-load
        :src="item.goods_small_logo || defaultSrc"
        class="goods-image"
        mode="aspectFit"
        />
        <!-- 商品信息 -->
        <view class="goods-info">
          <view class="goods-name">{{item.goods_name}}</view>
          <view class="goods-price">{{item.goods_price}}</view>
        </view>
      </navigator>
    </view>
    <!-- 底部提示 -->
    <view class="bottomToast" v-if="total === goodsList.length">没有更多数据了</view>
  </view>
</template>

<script>
export default {
  data() {
    return {
    total:0,
    goodsList:[],
    queryParams:{},
    tabList: [{ name: "综合" }, { name: "销量" }, { name: "价格" }],
    defaultSrc:'https://img0.baidu.com/it/u=324754129,1809452373&fm=253&fmt=auto&app=138&f=JPEG?w=529&h=500'
    };
  },
  onLoad(options){
    this.queryParams = {
        ...options,
        pagenum:1,
        pagesize:20
    }
    this.getGoodsList()
  },
  //监听用户下拉操作的钩子
 async onPullDownRefresh(){
    this.goodsList = []
    this.queryParams.pagenum = 1
    this.total = 0 
    await this.getGoodsList()
    uni.stopPullDownRefresh()
  },
  //监听用户上拉的钩子函数onReachBottom
  onReachBottom(){
    // console.log('111');
    if(this.goodsList.length < this.total){
        this.queryParams.pagenum++
        this.getGoodsList()
    }else{
        uni.showToast({
            title:'没有更多数据了',
            icon:'none'
        })
    }
  },
  methods:{
    //获取商品详情的函数
   async getGoodsList(){
        const res = await uni.$u.http.get('/goods/search',{params:this.queryParams})
        //  this.goodsList = res.data.message.goods
        this.goodsList = this.goodsList.concat(res.data.message.goods)
         this.total = res.data.message.total
    }
  }
};
</script>

<style lang="scss">
.goods-list {
  .goods-item {
    display: flex;
    border-bottom: 1rpx solid #ddd;
    padding: 25rpx;
    .goods-image {
      width: 190rpx;
      height: 190rpx;
    }
    .goods-info {
      flex: 1;
      font-size: 24rpx;
      /* 垂直方向两端对齐 */
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 20rpx;
      .goods-name {
        /* 多行超出隐藏 */
        overflow: hidden;
        -webkit-line-clamp: 2;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-box-orient: vertical;
      }
      .goods-price {
        color: #eb4450;
        /* 前面的价格符号 */
        &::before {
          content: "￥";
          font-size: 80%;
          margin-right: 5rpx;
        }
      }
    }
  }
}
.bottomToast{
    text-align: center;
    font-size: 24rpx;
    color: #999;
    padding: 10rpx;
}
</style>